ADAMTS13 activity and inhibitor-994

Test info

  
ADAMTS13 activity and inhibitor
  
994
  
LAB994
  
MSO
  
Von Willebrand cleaving protease
Adamts 13 inhibitor
Adamts 13 activity
Metalloprotease

Specimen

  
Sodium citrate (Na cit) plasma
  
  
2.0 mL
  

Specimen must be drawn prior to replacement therapy

  
  1. Spin down
  2. Remove plasma and spin a second time
  3. Transfer 1.0mL plasma into two (2) Screw cap transfer vial/tubes (Mayo T465)
  4. Freeze specimens immediately at ≤ - 40 °C
  
  

Frozen - 14 days

Performance

  
Mayo Clinic Laboratories (ADM13): R-NX
  
Varies
  
4 - 5 days
  

Activity: Fluorescence resonance energy transfer (FRET )

Screen and titer: Mixing studies

Clinical and Interpretive info

  

Activity assay: ≥ 70%

Inhibitor screen: Negative

Bethesda titer: <0.4 BU

Billing

  
85397 - Activity

Other CPT codes (if appropriate)
85335 - Inhibitor screen
85335 -Titer

Tracking

  
07/19/2005
  
02/17/2021